I have a healthy gardenia in a pot. The plant is well over a year old and has yet to bear flowers. Any ideas as to why?
Gardenias are very sensitive to temperature changes. They prefer 70 degrees F during the day and 60 to 65 degrees F at night. Nights above 65 degrees F will reduce bud growth and increase the chances of buds dropping off. Gardenias like high humidity and bright light. Keep the soil moderately moist at all times.